The strategic environment of European defence has changed substantially in the last years, particularly since the Russian invasion of Ukraine in 2022. In march 2025 the European Union formulated the Readiness 2030 white paper stating the need for defence restructuring the next few years.
This article explores some of the challenges on how this can be developed by exploring two lines of research. The first is the military technology and its impact on doctrine and organization. The second is an analysis of five potential scenarios using a combination of game theory and decision theory.
The readiness 2030 document indicates seven critical capability areas which are: (1) air and missile defence, (2) artillery systems, (3) ammunition and missiles, (4) drones and counter drones systems, (5) Military mobility, (6) AI, quantum, cyber and electronic warfare, (7) Strategic enablers.
Each of those critical capabilities is detailed in terms of potential future developments and their impact on doctrine and organization. This analysis tries to predict future developments of those technologies into near future.
Five scenarios are explored in terms of potential defence challenges in the 2030’s: (1) Russian conventional attack, (2) Russian Nuclear attack, (3) Russian Civil war, (4) Global war starting in the Middle east, (5) Global war starting in Asia-Pacific.
In each case a combination of Game theory and Decision theory is used in order to map potential developments and outcomes. The participation of USA in those scenarios is supposed to be either limited, or null.
The conclusions help understand potential ways to improve the process of reaming in the next years, and reduce risks in each of the five scenarios presented.